wait_for_response · Discord MCP Server MCP: Risk & Policy

WHAT IT DOES

What wait_for_response does on Discord MCP Server

AI agents invoke wait_for_response to trigger actions in Discord MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why wait_for_response needs a policy

This tool executes an action with external side effects—sending messages to Discord channels and triggering bot responses. While the message sending itself might appear to be Write, the tool's purpose is to trigger bot actions whose behavior is argument-dependent and not fully under the user's control. This elevated uncertainty about outcome makes it Execute rather than Write.

From the tool's definition Tool sends a message to Discord and waits for a bot response, triggering external operations (Discord API calls and bot interactions) whose effects depend on the message content argument.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

wait_for_response Rate-limited

wait_for_response stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wait_for_response": {
      "limits": [
        {
          "counter": "wait_for_response_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Discord MCP Server, so you can run agents against it safely.

FAQ

Questions about wait_for_response

What does the wait_for_response tool do? +

Send a message to a Discord channel and wait for a bot to reply. It is categorised as a Execute tool in the Discord MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wait_for_response? +

Register the Discord MCP Server MCP server in PolicyLayer and add a rule for wait_for_response: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Discord MCP Server. Nothing to install.

What risk level is wait_for_response? +

wait_for_response is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wait_for_response? +

Yes. Add a rate_limit block to the wait_for_response rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block wait_for_response completely? +

Set action: deny in the PolicyLayer policy for wait_for_response. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides wait_for_response? +

wait_for_response is provided by the Discord MCP Server MCP server (masonbesmer/code-discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.